D: interphase
during this phase , the chromosomes undergoes duplication of chromosome of 1 chromatid into chromosome of 2 chromatids , then the cell is ready for the cellular division.
Answer:
B)they make proteins from amino acids
Explanation:
The <span>companion cell i belive</span>
Scientist rely on <em>Biology </em>concepts when researching crop production and medicine.
Answer:yes
Explanation:
Ion pumps are assemblies of integral membrane proteins, like ion channels, that modulate ion transport into and out of a cell or organelle, leading to generation of electrical signals. Ion pumps, however, work against their concentration gradient, so require energy input, but the energy can also be derived from the concentration gradient of another ion.